Added support for district, ASN and AS

Author: ip2location-com

README.md

@@ -1,6 +1,6 @@
 ## IP2Location Nmap script
 
-This IP2Location Nmap script provides a fast lookup of country, region, city, latitude, longitude, ZIP code, time zone, ISP, domain name, connection type, IDD code, area code, weather station code, station name, mcc, mnc, mobile brand, elevation, usage type, address type and IAB category from IP address by using the IP2Location Lua Package. 
+This IP2Location Nmap script provides a fast lookup of country, region, city, latitude, longitude, ZIP code, time zone, ISP, domain name, connection type, IDD code, area code, weather station code, station name, mcc, mnc, mobile brand, elevation, usage type, address type, IAB category, district, autonomous system number (ASN) and autonomous system (AS) from IP address by using the IP2Location Lua Package. 
 
 The database will be updated on a monthly basis for greater accuracy. Free LITE databases are available at <https://lite.ip2location.com/> upon registration.
 
@@ -50,4 +50,4 @@ Indicates the path of the database file to use.
 
 # Copyright
 
-Copyright (C) 2022 by IP2Location.com, [support@ip2location.com](mailto:support@ip2location.com)
+Copyright (C) 2023 by IP2Location.com, [support@ip2location.com](mailto:support@ip2location.com)

ip-geolocation-ip2location.nse

@@ -3,7 +3,7 @@ local nmap = require "nmap"
 local stdnse = require "stdnse"
 
 description = [[
-Use IP2Location geolocation database to lookup the geolocation information with IP2Location Lua Package. It can be used to determine country, region, city, coordinates, zip code, time zone, ISP, domain name, connection type, area code, weather, MCC, MNC, mobile brand name, elevation, usage type, address type and IAB category that any IP address or hostname originates from. https://www.ip2location.com
+Use IP2Location geolocation database to lookup the geolocation information with IP2Location Lua Package. It can be used to determine country, region, city, coordinates, zip code, time zone, ISP, domain name, connection type, area code, weather, MCC, MNC, mobile brand name, elevation, usage type, address type, IAB category, district, autonomous system number (ASN) and autonomous system (AS) that any IP address or hostname originates from. https://www.ip2location.com
 
 The database will be updated on a monthly basis for greater accuracy. Free LITE databases are available at https://lite.ip2location.com/ upon registration.
 
@@ -43,6 +43,9 @@ Both IPv4 and IPv6 are supported.
 -- usagetype: N/A
 -- addresstype: N/A
 -- category: N/A
+-- district: N/A
+-- asn: N/A
+-- as: N/A
 
 author = "IP2Location"
 license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
@@ -166,5 +169,20 @@ action = function(host,port)
   else
     print("category: " .. result.category)
   end
+  if ((result.district) == "This parameter is unavailable for selected data file. Please upgrade the data file.") then 
+    print("district: N/A")
+  else
+    print("district: " .. result.district)
+  end
+  if ((result.asn) == "This parameter is unavailable for selected data file. Please upgrade the data file.") then 
+    print("asn: N/A")
+  else
+    print("asn: " .. result.asn)
+  end
+  if ((result.as) == "This parameter is unavailable for selected data file. Please upgrade the data file.") then 
+    print("as: N/A")
+  else
+    print("as: " .. result.as)
+  end
 
 end